74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
|
/* $FreeBSD$ */
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2000 by Matthew Jacob
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice immediately at the beginning of the file, without modification,
|
||
|
|
* this list of conditions, and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
|
||
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Definitions for the MCBUS System Bus found on
|
||
|
|
* AlphaServer 4100 systems.
|
||
|
|
*/
|
||
|
|
|
||
|
|
enum mcbus_device_instvars {
|
||
|
|
MCBUS_IVAR_MID,
|
||
|
|
MCBUS_IVAR_GID,
|
||
|
|
MCBUS_IVAR_TYPE,
|
||
|
|
};
|
||
|
|
|
||
|
|
#define MCBUS_ACCESSOR(A, B, T) \
|
||
|
|
\
|
||
|
|
static __inline T mcbus_get_ ## A(device_t dev) \
|
||
|
|
{ \
|
||
|
|
u_long v; \
|
||
|
|
BUS_READ_IVAR(device_get_parent(dev), dev, MCBUS_IVAR_ ## B, &v); \
|
||
|
|
return v; \
|
||
|
|
}
|
||
|
|
|
||
|
|
MCBUS_ACCESSOR(mid, MID, u_int8_t)
|
||
|
|
MCBUS_ACCESSOR(gid, GID, u_int8_t)
|
||
|
|
MCBUS_ACCESSOR(type, TYPE, u_int8_t)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The structure used to attach devices to the MCBUS
|
||
|
|
*/
|
||
|
|
struct mcbus_device {
|
||
|
|
u_int8_t ma_gid; /* GID of MCBUS (MCBUS #) */
|
||
|
|
u_int8_t ma_mid; /* Module ID on MCBUS */
|
||
|
|
u_int8_t ma_type; /* Module "type" */
|
||
|
|
u_int8_t ma_order; /* order of attachment */
|
||
|
|
};
|
||
|
|
#define MCBUS_GID_FROM_INSTANCE(unit) (7 - unit)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* "types"
|
||
|
|
*/
|
||
|
|
#define MCBUS_TYPE_RES 0
|
||
|
|
#define MCBUS_TYPE_UNK 1
|
||
|
|
#define MCBUS_TYPE_MEM 2
|
||
|
|
#define MCBUS_TYPE_CPU 3
|
||
|
|
#define MCBUS_TYPE_PCI 4
|
||
|
|
|
||
|
|
#define DEVTOMCBUS(dev) ((struct mcbus_device *) device_get_ivars(dev))
|